Sand and chip spreaders



1950 E. w. SAIBERLICH 2,954,982

SAND AND CHIP SPREADERS Filed June 7, 1957 k; v m w United States PatentSAND AND crnr SPREADERS Erwin W. Saiberlieh, Menasha, Wis., assignortoFox River Tractor Company, Appleton, Wis., a corporation of Wisconsin1 Filed June 7, 1957, Ser- No. 664,368 6 Claims. c1. 275-8) Thisinvention relates to Improvements in Sand and Chip Spreaders.

Municipalities and other government agencies charged with themaintenance of streets and highways have need at certain times of theyear, particularly in the North, for trucks equipped to spread materialssuch as sand and salt on the streets and highways, to control iceconditions. There is also a demand during certain periods vide a sandand chip spreader wherein the spreading spinner is mounted for verticalmovement at the lower end of a spreader housing whereby it may bereadily adjusted in a vertical direction relative to the housing tocreate a uniform spread varying from eight feet to thirty- 'two feet inwidth. With prior devices such a range of spread has not been possible.With the present invention the spread is so flexible that with maximumadjustment in one direction the full width of a street can be covered,and then with a simple manipulation the spread can be adjusted so thatthe sand will pass between parked cars without throwing sand on the carsthemselves.

The invention is also useful in spreading sand under 7 cars which arestalled on slippery hills so as to enable said cars to get tractionduring emergency periods which occur during and shortly after a newsnowfall.

The arrangement is also such that the mechanism may be adjusted to throwsand under the rear wheels of the sand spreading truck itself to therebyimprove its traction on hills in bad weather.

Other objects of the invention are toprovide a sand and chip spreaderwhich is simple in construction, foolproof in operation, which can beoperated from a remote location such as from the drivers cab, and whichis otherwise well adapted for the purpose described.

With the above'and other objects in view, the invention consists of theimproved sand and chip spreader, and all of its parts and combinations,as set forth in the claims, and all equivalents thereof.

In the accompanying drawings, illustrating one complete embodiment ofthe preferred form of the invention, in which the same referencenumerals designate the same parts in all of the views:

Fig. 1 is a fragmentary perspective view looking at the rear and at partof one side of a truck equipped with the improved sand spreading body;

Fig. 2 is a vertical sectional view through the sand spreader housingshowing the improved spreading mechanism;

Fig. 3 is a horizontal sectional view taken on the line 33 of Fig. 2just above the bearing 25 and below the sh d n Fig. 4 is a horizontalsectional view taken on the line 4-4 of Fig. 2 through shield 38.

Referring more particularly to the drawing, the numeral 10 designates astandard dump truck body having the tailgate removed. Within the body isthe auxiliary body 11. This body is preferably mounted as fullydisclosed in my beforementioned copeuding application, Serial No.639,680, now Patent No. 2,881,024. The auxiliary body is generally atruncated triangle in crosssection so that it has a trough-like bottom12 within which an anger 12 is rotatably supported. The anger isrotatably driven in any manner and is adapted to move material such assand, chips, salt and the like from within the auxiliary body out of itsrear end, as shown in Fig. 2.

The rear end of the auger trough 12 extends into a spinner housing 13and is open whereby material 14 discharged by the auger will falldownwardly by gravity through the spinner housing (see Fig. 2). Thespinner housing is suitably supported at the rear lower portion of theauxiliary body 11.

Suitable driving mechanism for the auger, within a housing 15, may alsobe connected in any manner to a sprocket 16 on the shaft 17 to drive thelatter. Gears within a gear box 18 transmit rotation to a vertical shaft19 suitably journalled vertically in the gear box. The latter issupported by a bracket 20 on the rear end of the auxiliary body'll. Thelower end of the shaft 19 depends from the bottom of the gear box 18 andis connected by a coupling 21 with a splined sleeve 22. A spinner shaft23 has its upper ends splined as at 24 to fit slidably within thesplined sleeve 22 whereby the shaft may be adjusted vertically withrespect to the sleeve 22 while still being rotated thereby. The shaft 23has a lower portion extending rotatably through a bearing 25 in a fixedbracket 26, the latter being suitably supported by the housing 13.

A rock shaft 27 is suitably supported at the rear of the auxiliary bodyfor rocking movement, and has an operating lever 27' rigidly secured toits outer end. The lever may have a yielding detent 28 for coaction withnotches 29 in a bracket 30 on the side of the spreader housing toreleasably hold the lever in a desired position against the tension of acoil spring 31. Suitable linkage 36 may extend from the upper end of thelever to a position next to the cab of the truck whereby the lever 27may be actuated from a remote point, such as the drivers seat.

Also rigidly mounted on the rock shaft 27 is a lever 32. The outer endof the lever carries a pin 33 which projects inwardly to engage with agroove 34 in a collar 35, the latter being rigid with the spinner shaft23. In this manner, rocking of the shaft 27 by the lever 27' in onedirection or the other will cause upward or downward movement of thecollar 35 and shaft 23 without interfering with the rotating movement ofthe shaft.

Depending from the collar 34 is a tubular shield 37 the lower end ofwhich telescopically overlaps an elongated vertically fixed shield 38,the latter surrounding the spinner shaft to protect it from the fallingmaterial 14;

The lower end of the shield 38 has a downwardly flanged circular hood 39which is over the bearing 25 to protect the latter. Thie shield 38 maybe suitably supported in the housing 13. Another sleeve 39' whichsurrounds a lower portion of the spinner shaft 23 is supported withinthe bearing 25 and has the inner bearing race 40 se.

vertically. At the same time during rotating movement of the spinnershaft 23, the sleeve 39 and inner bearing race 40 rotate therewith.Thus, the lower portion of the. spinner shaft is supported for bothrotating and sliding movement while the bearing is protected from thefalling. material. I

Rigidly connected to the lower end of the spinner shaft 23 is aspreadingspinner 43. This comprises a disk with radial vanes 45 on its upperside. 'In the lowermost position of adjustment the spinner 43 isin theposition shownby full lines in Fig. 2, that is, just below the bottom ofthe outwardly flared skirt 44 "at. the. lower end Of the housing 13.By-movement of the lever 27' the spinner may be moved upwardly, as.indicated by the arrows, to various selected. positions within theskirt. When in an uppermost position the, material thrown centrifugallyby the spinner hits the skirt; and falls downwardly with less spread.When the spinner is in the full line position of Fig. 2, maximum spreadis obtained.

It is apparent that the vertical position of the spinner aeeaeea 4 tion,said skirt having an open lower end, a horizontally rotatable spreadingspinner of substantially less diameter than thesize of said open lowerend of the skirt and of substantially greater diameter than the size ofsaid open lower portion of the spreader housing, a control on saidreceptacle, cooperating means on said housing and spinner supporting thelatter for vertical adjustable movement 1 from a position belowsaid'skirttoa selected position therewithin while the spinner isrotating to control the width of spread, coperatingfmeans on saidcontrol and spinner for effecting'said' adjustable movement includingmeans providing for rotation during said vertical adjustable movement,and drivingmeans for said spinner on the receptacle including adrivingconnection which permits said vertically adjustable'movement ofthe spinner while it is rotating.

3. In a mobile sand spreader having a wheeled receptacle for sand orthe-like, a spreader housing depending 43. may be adjusted while thespinner is rotating and while material is being spread. Also, if thespinner is in a position for maximum spread to cover the entire width ofthe street, then if the truck approaches parked cars, the spinner may beinstantaneously raised without stopping the spinner action to preventthrowing of material at the cars. Through the remote linkage 36, theadjustment may be taken care of from any remote point such as adjacentthe drivers cab. During movement of the lever 27, when a pull is exertedin one direction or the other thereon the detent 28 will slip into andout of the notches 29, and when the lever arrives at a predeterminedposition the spring 31 will releasably hold the detent in a selectednotch.

It is apparent that the device provides for great flexibility in therange of spread to instantaneously suit any condition encountered. Forexample, the trucks may be called out during a snowstorm to throw sandbeneath cars that are stalled on slippery hills, and the spread may beso adjusted as to direct the sand wherever desired. If the truck itselfhas trouble with traction, the spinner may be adjusted to throw sandunderneath its own wheels.

It is to be understood that the present invention is not to be limitedto the exact details of construction shown and described, for obviousmodifications may occur with persons skilled in the art.

What I claim is:

1. In a mobile sand spreader having a wheeled receptac'le for sand orthe like, a tubular spreader housing depending from the rear of saidwheeled receptacle and having a bottom skirt with an open lower end, arotatably supported driven shaft above said spreader. housing, drivingmeans on said receptacle for said driven shaft, 2. spinner shaftextending therebelow within said housing, means between said drivenshaft and the upper end of said spinner shaft whereby the latter may bevertically moved while it is being rotatably driven, a horizontallyrotatable spreading spinner mounted on the lower end of said spinnershaft and positioned for movement with the spinner shaft when the latteris vertically moved from a position below the open lower end of saidskirt to a position therewithin to control the width of spread, avertically fixed tubular shield supported within said tubular spreaderhousingthrough which said spinner shaft extends and within which it isvertically movable and rotatable, and means projecting horizontally intoan upper portion of said spreader housing and having an open endpositioned to discharge material from the wheeled receptacle. onto anupper portion of said tubular Shield.

2. In a. mobile. sand spreader having a wheeled receptacle. for sand orthe like, a spreader housing depending from the rear of said wheeledreceptacle and having an open lower portion, a downwardly andoutwardlyflared skirt projecting downwardly from said open lower porfromthe rear of said wheeled receptacle and having an outwardly flaredbottom portion with an open lower end, said portion having an upwardlydecreasing area in horizontal section, an upright spinner shaftrotatably and longitudinally slidably mounted within said spreader housing, a spinner mounted on the lower end of said shaft for rotationtherewith in a horizontal plane and positioned adjacent said open lowerend of the bottom skirt and of substantially less size than said lowerend, driving means on the receptacle including a driving connectionwhich permits longitudinal sliding movement of the shaft while beingdriven for rotating said shaft to drive the spinner, a control on saidreceptacle, cooperating means on said control and spinner shaft forraising and lowering the shaft when said control isoperated, saidcooperating means including a connection which provides for rotation ofthe shaft while it is being raised and lowered.

4. In a mobile sand spreader having a wheeled receptacle for sand or thelike, a spreader housing depending from the rear of said wheeledreceptacle and having a bottom skirt with an open lower end, a rotatablysupported upright driven shaft, means on the receptacle for drivingsaid. shaft, a bearing supported in vertically fixed position in saidspreader housing below and in alignment with said driven shaft, aspinner shaft rotatably and vertically adjustablysupported in saidbearing within Said housing and below said driven shaft, a splinedconnection between said driven shaft and the upper end of said spinnershaft whereby the latter may be vertically moved while it is beingdriven, a horizontally rotatable sand spreading spinner mounted on the-lower end of said spinner'shaft adjacent the open lower end of saidbottom skirt and ofv substantially less size than said lower open end, acontrol on the receptacle, and cooperating means on said control andspinner shaft for vertically adjustably moving the spinner shaft to varythe vertical position of the spinner with respect to said open lower endof the bottom skirt from a position below said skirt to a selectedposition within said skirt and thereby control the width of spread, saidcooperating means including a connection which permits rotation of thespinner shaft while it is being vertically adjusted.

5. In a mobile sand spreader having a wheeled'receptacle for sand or thelike, a spreader housing depending from the rear of said wheeledreceptacle and having a bottom skirt with an open lower end, a rotatablysupported driven shaft, means on the receptacle for driving said shaft,a bearing supported in vertically fixed position .in said spreaderhousing below and in alignment with said driven shaft, :a spinner shaftrotatably and vertically adjustably supported in said bearing withinsaid housing and belowsaid driven shaft, a splined connection betweensaid driven shaft and the upper end of said spinner shaft whereby thelatter may be vertically moved while it is being driven, a horizontallyrotatable sand spreading spinner mounted on the lower end of saidspinner shaft adjacent the lower open end of said skirt and ofsubstantially less size than said open lower end, lever means pivotallymounted on the receptacle, cooperating means on said lever means andspinner shaft for vertically adjustably moving the spinner shaft, saidcooperating means including a connection which provides for rotation ofthe spinner shaft while said adjustable movement is taking place, saidcooperating means providing for movement of said spinner shaft asufficient distance to move the spinner from a point below said skirt toa selected position within said skirt and thereby control the width ofspread, and a remote control for said lever means.

6. In a mobile sand spreader having a wheeled receptacle for sand or thelike, a spreader housing depending from the rear of said wheeledreceptacle and having a bottom skirt with an open lower end, meansprojecting horizontally into said spreader housing for dischargingmaterial from the receptacle into said spreader housing to fall bygravity therein, a rotatably supported driven shaft above said spreaderhousing, means on the receptacle for driving said shaft, a spinner shaftextending therebelow within said housing, fixed means in the housingsupporting said spinner shaft for rotation and for axial movement, asplined connection between said driven shaft and the upper end of saidspinner shaft whereby the latter may be vertically moved while it isbeing driven, a horizontally rotatable spreading spinner mounted on thelower end of said spinner shaft adjacent the lower end of said skirt,cooperating means on the receptacle and spinner shaft for verticallyadjustably moving the spinner shaft to vary the vertical position of thespinner with respect to said open lower end of the bottom skirt andthereby control the spread and including a connection which permitsrotation of the shaft while it is being vertically moved, and avertically disposed tubular shield through which said spinner shaftextends supported within the spreader housing, the upper end of saidshield overlapping the horizontal discharge means and being within thepath of material therefrom for shielding the spinner shaft from thefalling material, the lower portion of said tubular shield beingdirectly over said supporting means for the spinner shaft to protect thelatter.

References Cited in the file of this patent UNITED STATES PATENTS321,879 Amundson et al. July 7, 1885 544,012 Spangler Aug. 6, 1895866,203 Johnson Sept. 17, 1907 1,275,332 Wallace Aug. 13, 1918 2,512,955Martin June 27, 1950 2,673,090 Blumberg Mar. 23, 1954 FOREIGN PATENTS518,225 Belgium Mar. 31, 1953 731,773 France May 31, 1932

